Fireplace



J. M. BLANCHARD FIREPLACE original Filed on. 2T 1922mWIHMWWWWMWWWMMMHHH."

Patented Aug. 21, 1928.

UNITED'STATES PATENT OFFICE.

JULIUS IVI. BLANCHARD, OF

y FIREPLACE.

Application filed October 27, 1922, Serial No. 597,273.

The invention relates to fire-places and its object is to 1 rovide aheater which is adapted to be installed in a fire-placeto increase itsheating eflicicncy.

The invention consists in the several novel features hereinafter setforth and more particularly defined by claims at the conclusion hereof.

'In the drawings: Fig. 1 is a perspective of a fire-place and heaterembodying the invention. Fig. 2 is a vertical section. Fig. 3 is adetail of a modification. A v

The invention is exemplified in a heater1 which comprises a floor lformed of suitable east metal and supported at either side upon acourseof brick 5, so that the floor will be spaced from the floor 6 ofthe fire-place and form a cold air duct 7. This floor Ll may, ifdesired, be formed with a flange 8 at its front and covered with a layerof cement 9. An ash duct 10 is formed in the floor i and eX- tendsupwardly to the top of the ceinent 9 and downwardly into the usuallybuilt-1n ash flue 11. A cover 12 is removably placed on the upper endofthe ash duct 10, so that the latter will be closed while thefire-place is 1n use. The heater also comprises a series of verticalpipes 13 which are secured at their lower ends upon nipples 1li on floor4. The lower ends of these pipes are in communication with the cold airduct 7 below the floor. The upper ends of pipes 13 are connected to adrum 15 which is disposed in the upper portion of the fire-place whereit will be subjected to the heat of the flames from the fire on theheater. This drum is preferably formed of horizontal sections 1G and 17which are separately formed and have their contiguous portions flangedand bolted together as at 18. Drumsection 16 is provided with nipples 19to enter and 'for connection with the upper ends of the heater pipes 13.An outlet pipe 2O is connected to the top section 17 ofthe drum which isprovided with a nipple 21 to receive the lower end of said outlet pipe.The latter eX- tends upwardly from the drum and thence forwardly throughthe breast or Wall across the top of the fire-place. At its front end,the outlet pipe is provided with a register 22 by which the discharge ofair from pipe 20 may be regulated.

The heater is adapted for anyklrind of flue and in use, the products ofcombustion in being drawn upwardly through the smoke iiue Renewed April13, 1928.

23, will pass around pipes 13 and the drum 15. This will cause the hotair to rise and pass through the outlet pipe 20 and register 22into theroom. The cold air will be drawn through duct 7 between the heater floorand the iireplace floor and upwardly through the pipes 13 `into thedrum. The drum is formed of sections 16 and 17 so that one section maybe reversed relatively to the other and, as a re-v sult, the outlet pipeinay be ofiset with respect to the pipes, as is shown in Figs. 1 and 2or may be reversedto bring the outlet pipe substantially in verticalline with the pipes 13. Pipes 13 are spaced apart so that the productsof combustion may pass between and encircle thein toeffioiently heat theair in said pipes. The flames envelop the drum and cause the air thereinto be intensely heated. The rertieal portion of' the outlet pipe ispreferably disposed in the smoke flue so that the air therein will befurther heated in transit to the point of discharge and to acceleratethe discharge. The heater floor may be installed without alteration ofthe fire-place. The ashduct in the heater floor or bed is extendedthrough the air duct 7 so that no dust will" pass into the air duct. Themetal pipes are free to expand and contract without warping ordisturbing the other heater parts. Any number of heater pipes,according` to the size of the fireplace, may be used. The heater pipesare connected to the back portion of the drum so that the front portionwill be disposed above the flames to efficiently heat the air in thedrinn. The several parts of the heater are removable so thatsubstitution may be made in event any should become burnt out. Themodification shown in Fig. 3 is adapted for places where it is desiredto heat two rooms, one of which is disposed above the other. In thisconstruction, a fitting 24 is connected to the nipple 21 on the drum 15.This fitting is provided with a nipple 25 for connection to an outletpipe 20 similar to the one shown in Figs. 1 and 2, and a nipple 27 for asecond outlet pipe 26 which leads to and discharges air into the upperroom.

The invention exemplifies an improved lireplace heater in which thestrata of cold air adjacent the floor is drawn into the heater, heatedtherein and discharged into the room at a higher level; which may bereadily installed in an ordinary fire-place; and which is eiiicient inuse. A characteristic of the invention is that the metal parts of theheater' are quickly heated so they tend to overcome any down-draft ofthe products oit combustion.

The invention is not to be understood as restricted to the details setforth, since these may be modified within the scope of the ap pendedclaims, without departing from the spirit and scope of the invention.

Having thus described the invention, what I claim as new and desire tosecure by Letters Patent, is:Y

1. The combination with a fire-place having a built-in floor and an openfront, of a heatertherein Comprising means forming a cold air inletadjacent the said floor of the tire-place, a druin in the upper portionof yhe fire-place formed of upper and lower substantially horizontalreversible sections removably secured together, Substantiallystraight-pipes between and removably connected to the inlet and thelower section of the drum, means forming a hot air outlet, and aconnection between said outlet and the upper section of the drum, saidconnection being ott'set relatively to the' longitudinal center of thedrum so that the position of the outlet may be changed by reversing theupper section relatively to the lower section.

2. rlhe combination with a tire-place having' a built-in iloor and anopen front, of a heater therein comprising means forming a cold airinletadjacent said floor of the fireplace,` ay drum in the upper portionof the tire-place formed of upper and lower substantially horizontalreversible sections removably secured together, an upwardly eXtendingnipple on the upper section, downwardly extending nipples on the lowersection, substantially straight pipes extending' between and removablyconnected to the auxiliary loor and the said downwardly extendingnipples of the lower section, and means secured to the upwardlyextending nipple on the upper section and forming an outletfor the hotair from the druin, the nipples on the sections being offset relatively'to the longitudinal center of the drum so that the position of thenipples may be changed by reversal of the sections.

Signed at Portland, Oregon this 16th day of October, 1922 i JULIUS M.BLANCHARD.

